71.
A prefix for billion which is equal to _____ is called as billi.

72.
The operation of a digital computer is based on _____ principle.

73.
Which of the following Indian companies designs and manufactures super- computers?

74.
Which of the following memories needs refresh?

75.
Which of the following is not a sequence storage device?

76.
The computers that we use are digital whereas we live in an analog world which means that we have to translate analog data into digital data. What is the name of the circuit which helps us in this conversion?

77.
Which of the following statements best describes the batch method of input?

78.
What is the name of the memory card which is conceptually related to the smart card but is similar to the video disk?

79.
In 1830, Charles Babbage disigned a machine called the Analytical Engine which he showed at the Paris Exhibition. In which year was it exhibited?

80.
Which of the following is used to check for errors in RAM chips?